To identify the flammable used, if any, to start a fire at the crime scene or elsewhere.

Sample

Simulated burned carpet from the fire's point of origin. Prepare the sample in the following way.

Place 40 drops flammable liquid on a carpet sample (1.5" x 1.5"), and set the carpet on fire with a match (in a pan in the fume hood). Douse the flame with water after 2 minutes. Shake the burned carpet sample to remove water, and then place it in a paint can. Seal and label the can.